* {
  box-sizing: border-box;
  font-family: 'PingFang SC', 'Microsoft YaHei', 'sans-serif';
  user-select: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
}

ul,
li {
  list-style: none;
  margin: 0;
  padding: 0;
}

.icon {
  width: 24px;
  height: 24px;
}

.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}
